Carlos Mencia is well-known for his standup humor, which is slyly good-natured and often focuses on race and ethnicity. The 46 year-old Mencia has had a successful series on The Comedy Channel (Mind of Mencia) and draws huge crowds when he tours the country. When he was starting out in the business, he spent a lot of time on college campuses. And he learned pretty quickly that how he talked about the ethnicity he thought he shared with his audience could get him into trouble.

He told TV host Katie Couric about the scoldings he'd get as he thrashed around trying to find a name for the politicized students who'd come to see him.

"I said 'Latinos,' and they said, 'We're not Latin!' " he told Couric. "And then I said 'Chicano,' and they said, 'We're not of Mexican descent.' So I said 'I don't know what to say — Hispanic?' And they said, 'There's no such country as Hispania!'" He's chuckling now, but the memory was still clearly frustrating. "How am I supposed to describe us?" he wondered.

Those exchanges took place 20 years ago, and people — and institutions — are still trying to figure it out. The census used to ask people now commonly referred to as Latino or Hispanic to check the "Spanish-speaking" box, but that was too restrictive. What if you were Latino but didn't speak Spanish? Or if you were from the Iberian Peninsula and didn't speak English. ¡Ay!

So in 1980, the Census Bureau switched to using the term "Hispanic," which had been chosen during the Nixon administration in the 1970s and up till then had been used on all government forms. But some people liked describing themselves as Latino — sometimes it indicated one's geographic origins, sometimes one's political leanings. Public figures decided to try to please everyone, and many use both Latino and Hispanic, sometimes interchangeably. Sometimes in the same sentence.

The Spanish-language news behemoth Univision also uses the term interchangeably, as do many Hispanic/Latino Americans. (And, as you might have guessed, so does NPR.)

NPR surveyed almost 1,500 randomly selected people to ask whether they would choose to describe themselves as Hispanic or Latino. We found a very slight preference for Hispanic, but not a terribly significant one. When Code Switch asked its followers on Facebook how they felt about this, we saw a kaleidoscope of responses:

Debbie Pastor wrote: "I find the term Latin@ more appropriate than Hispanic.... Latino includes all Spanish speakers regardless of country of origin, including spain."

Arturo Czares also said: "I prefer Latino but Hispanic is OK. Neither is perfect, but both are general terms that encompass a lot of people."

David Alejandro Haros commented: "I used to hate the term Hispanic, but now it doesn't matter. I use either interchangeably."

As with NPR's poll, the Pew Research Center's Hispanic Trends Project found the same thing in its latest Latino survey.

Mark Hugo Lopez, director of the Hispanic Trends Project, says this demographic identifies much more readily with its country of origin — or the country its parents or grandparents came from. While traveling through Latin America, Lopez said, "You'll find people aren't necessarily describing themselves as Hispanic first. They'll say they're Salvadoran or Peruvian when you go to those countries."

And there's a local equivalent of that here in the U.S.: Marketing specialist Mando Rayo says he's "part Mexican, part American, 100 percent Tejano!" Texas trumps everything, although Rayo said if forced to choose, he chooses Latino, because he feels it connects him more to his Latin American roots.

But, he said, everyone describes himself differently, which is why he tells clients wanting to capture part of the Latino market it's important to do some research first. "They're thinking about trying to sell something to the Latino community," Rayo said, "and I always say, well, which one?"

The Latino community?

Rayo is not kidding. There is no one Latino community. Variables like age, whether a person is born in the U.S. or has migrated here, level of education — all those things can be important. Even within people with the same ancestry: A sales pitch crafted to Mexican-Americans in Texas could be very different from one aimed at Mexican-Americans in California.

Different geography, different customs, different cuisines, all have to be taken into consideration. Which has corporate America and politicians eyeing this important demographic, while scrambling to try to figure things out.

"Welcome to multicultural America," said Angelo Falcon. "Reality is a very complex thing for everybody — including Hispanics." Falcon, who is Puerto Rican, heads the National Institute for Latino Policy and has been working with — and on — the census for years to develop a more accurate categorization for Latinos/Hispanics. Falcon says getting people to switch from Hispanic or Latino to a yet-to-be-devised descriptor is going to be a lot harder for Latino leaders than it was for Jesse Jackson to persuade people to switch from black to African-American in the 1980s.

Those descriptors had evolved over the years, from colored to Negro to black and most recently, African-American. Jackson and the people subscribing to African-American wanted to switch, Falcon says, because "they thought African-American was a more culturally-based, ethnic term that would identify more with the American experience." (Think about how different the perspective of an Oxford-educated Nigerian immigrant might be from a first-generation college graduate whose people have been in this country for 150 years. Both are black. Both are African-descended. But only one is African-American, with everything that history implies.)

Falcon believes the critical difference between getting "African-American" accepted and widely adopted was the salient fact that the term came from the community being urged to use it; it wasn't chosen by the government. (The government has since chosen to use it, though.)

Eventually Hispanic/Latino or something else will probably be moot, if this demographic's experience reflects its predecessors. Succeeding generations will take pride in their ancestry, but they'll describe themselves as being New Yorkers or Louisianans — or "100 percent Tejano."

As Alejandro X Terrazas wrote on Facebook that he considers himself "American first, ethnically Hispanic."

And Karen Villatoro also commented: "I like to think of myself as American with Central American roots."

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Remember when folks used to talk about being "post-racial"? Well, we're definitely not that. We're a team of journalists fascinated by the overlapping themes of race, ethnicity and culture, how they play out in our lives and communities, and how all of this is shifting. Sit with us a bit.